$24k Gross Per Roster (4 weeks) would be ~80 hours for a Year 12 Captain on the bus. So not likely... it'll also take ~16-18 years to achieve as you don't simply slide across to the same step you were on as an FO.
$10k for a year 4 FO however (an ATPL gets you onto Year 4 pay after 12 months) is ~65 hours so the norm.
As I said in a previous post, you wont get a payrise going from CX to Air NZ, but that's not why people are moving is it? Also, not sure what the allowances are like in CX, but ours are fairly decent. Many expats seem to note the total package isn't as bad as they thought when all factors are considered.